In a drainage area of 15 ha, the slope and drainage coefficient are 0.4% and 11 mm/day, respectively. The value of Manning's roughness coefficient is 0.016. The...

The depths from the soil surface to subsurface tile drains, impermeable soil layer and the highest water table are measured as 2.8 m, 5.0 m and 0.8 m, respectiv...

In a subsurface drainage system, the peak discharge through tile drain under full flow condition is given by Q=6.715 ×10^-5 d^1.65 S^0.5 / n where, Q = discharg...